[PATCH 01 of 11 FOR-REFERENCE] tests: rename ``test-run-tests.t`` to ``test-unified-test.t``

[pierre-yves.david at ens-lyon.org]

# HG changeset patch
# User Pierre-Yves David <pierre-yves.david at fb.com>
# Date 1401474945 25200
#      Fri May 30 11:35:45 2014 -0700
# Node ID fc57c2d3710ca2f81741be6e439f92738843b0ce
# Parent  9c35f3a8cac48b9404ee8dbbda18467f6123b82f
tests: rename ``test-run-tests.t`` to ``test-unified-test.t``

This ``test-run-tests.y`` is testing the unified test (.t) syntax
interpretation, not really the run-tests.py command tool itself.

diff --git a/tests/test-run-tests.t b/tests/test-unified-test.t
rename from tests/test-run-tests.t
rename to tests/test-unified-test.t